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Question 1 - CAS-004 discussion

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An energy company is required to report the average pressure of natural gas used over the past quarter. A PLC sends data to a historian server that creates the required reports.

Which of the following historian server locations will allow the business to get the required reports in an and IT environment?

A.
In the environment, use a VPN from the IT environment into the environment.
Answers
A.
In the environment, use a VPN from the IT environment into the environment.
B.
In the environment, allow IT traffic into the environment.
Answers
B.
In the environment, allow IT traffic into the environment.
C.
In the IT environment, allow PLCs to send data from the environment to the IT environment.
Answers
C.
In the IT environment, allow PLCs to send data from the environment to the IT environment.
D.
Use a screened subnet between the and IT environments.
Answers
D.
Use a screened subnet between the and IT environments.
Suggested answer: D

Explanation:

A screened subnet is a network segment that separates two different environments, such as (operational technology) and IT (information technology), and provides security controls to limit and monitor the traffic between them. This would allow the business to get the required reports from the historian server without exposing the environment to unnecessary risks. Using a VPN, allowing IT traffic, or allowing PLCs to send data are less secure options that could compromise the environment. Verified

Reference: https://www.comptia.org/blog/what-is-operational-technology https://partners.comptia.org/docs/default-source/resources/casp-content-guide

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asked 02/10/2024
Tarun Sharma
45 questions
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